Ring and traveler for spinning machines



June 2, 1931. w. T. MUNSON l y RING AND TRAVELER FOR SPINNING MACHINES IFiled Nov. 15 1950 gnaw/M101 name June 2, i931 UNITED STATES PATENToFFicE wmnm r. Morison, or More, rnm'rsrnvmra; nssrcnon 'ro countssurrLY um squirm comm, or scnm'ron, rmmsnvanm, A COPABTNERSHIP conrosnnor min! I. comma AND ALBERT a. comma mo TRAVELER FOB, MACHINESApplication fled llovember- 15, 1830. Serial No. 495,970.

This invention relates to the textile art and has special reference toimprovements in the spinning s and travelers employed in the spinning ofsilk and the like.

In the usual construction of devices of this character there is provideda ring which is so mounted in a holder that the ends of a traveler ofthin spring wire may engage beneath the inner part of the ring .and movefreely around the bobbin which lies centrally of such ring. Because ofthe stress on the traveler due to the upward pull of the strand andbecause of the high velocity at which the traveler moves around the ringa very great friction is developed between the ends of the traveler andthe ring. The traveler must be ve light yet strong so that it is made ofbig carbon s ring-steel wire and it is thus very hard. onsequently ifsteps are not taken to prevent such action, a great deal of wear takesplace on the ring and such wear speedily tends to impair the action ofthe traveler so that the latter nolonger moves smoothly around the ringbut has a more or less irregular or jerky motion. This interferesseriously with the spnning operation and frequently produces breakagesof the silk and inequalities of tension therein even when not broken.

Efiorts have been made to overcome this wear by so constructing the ringas to form a lubricant reservoir feeding to the contact surface betweenthe flyer and ring. Such constructions are necessarily somewhatcomplicated and are also expensive to manufacture. Other efforts havebeen made to decrease the wear b bending the tips of the travelerdownwar y so that the under side of the ring is contacted by the outsideor convex portion of the bend. Such an arrangement is only partiallysuccessful since the bend wears a cove into the ring only less rapidlythan t s end or the wire where the bend is omitted and the end-contactswith the ring. Still other efiorts have been made by providing a flatsurface on the under side of the ring and bending the traveler toprovide a straight portion contacting throughout with this flat surface.This, however, results in increasing the frictional resistance againstmovement of the traveler even though the wear is decreased and suchincrease of resistance is highly objectionable.

Furthermore, rings of this descriptionare usually turned on a'lathe fromsteel and are correspondingly expensive. 1

Because of the facts mentioned above it is one of the objects of thepresent invention to provide an improved form of ring-and travelerwherein" friction and wear will be reduced to negligible quantities withthe use of very little lubricant and without the use of special devicesfor feeding lubricants.

A second object of the invention is to provide an improved arrangementof ring and traveler wherein any wear of the ring which does occur willbe of such nature as not to the .ring wherein the ring is formed from aunitar stain ing of sheet metal.

Wit the a ove and other objects in view, as will be presentlyunderstood, the invention consists in general of certain novel featuresof construction and combinations of parts hereinafter fully described,illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like char- 1 acters of reference indicatelike parts in the several views, and:

Figure 1 is a plan view of the invention showing the ring holderassociated therewith.

Figure 2 is a; section onthe line 22 of Figure 1.

Figure 3 is a greatly enlarged detail section'on the line 3-3 of Figure1 showing one end of the traveler in running position.

conditions the contact between the Figure is a View similar to Figure 1but with the traveler dropped from running position.

' being preferably steel. This sheet is unc ed to form an annulus whichis forme to provide an inverted frusto-conical body, 10 having a flange11 depending from its outer edge and having a head 12 extending incrosssection about three-fourths of a circle formed below the inner edgeof the body. This segmento-circular bead extends well below the loweredge of the flange 11. B means of this construction the ring fits int eusual holder which has a flat annular base 13 provided at its innerperiphery with an upstanding flange 14 and on its outer periphery withspring clips 15 for holding the ring in proper position with the beadspaced fromthe flange 14 and on its outer 1periphery with spring clips15 for holding t e ring in proper posltion with the bead spaced from theflange l4 and having its top substantially level with the upper edge ofsaid flan'ge. Also the holder has lugs 16 projecting outwardly from thebase, these lugs being slotted to receive the usualy holding downscrews.

The traveler consists of a single length of fine wire, preferably of thegrade known as spring steel or piano wire. This wire is bent to providea body portion 17 the length of which is considerably less than theinternal diameter of the ring. A leg 18 depends from each end of thisbody 17 and terminates in a downwardly'and outwardly arcuately curved,foot 19 having a radius greater than the radius of the head 12, theradius of. the

, foot being about twice that of the bead. The body, legs and feet alllie in the same planeand the lateral projections of the feet are suchthat these distances are much greater than the corresponding distancesbetween the vertical center lines, head 12 and flange 14 and causing thetraveler to hook against thelargest diameter of the bead, and thus thetraveler is securely held in cooperative relaof the trav eler 'foot 19causes the traveler to tion to the ring and cannot become accidentlydisengaged therefrom.

Moreover, the outward and upward curve run without coming in contactwith the traveler ring holder support 15 Whereas the old style oftraveler with a straight foot would, if extended-past the proper length,quickly cut off the traveler ring holder support 15. t

In the modification of the ring shown in Figure 5'there is disclosed aring turned to shape to provide a frusto conical body 20, internal head21 and external flange 22, the ring thiis having the same general shapeas the sheet metal ring previously described. Thus, either the sheetmetal ring or thei ring the sheet metal ring is simpler and more.

economical to manufacture.

By an inspection of Figure 3, which shows the traveler in runningposition, it will be seen that the construction provides for but asingle contact point between the foot of the traveler and the bead, thecurvatures of these parts being tangential and, because of the circularcross section of the wire, the tangential contact is linked to a onepoint contact. Furthermore, under no circumstances can the terminal endof the wire 'contact in running position with any part of the ring sincethe instant the traveler is raised the bead and curved feet will fittogether with the bead in the lowest part of the curved foot. Because ofthis friction between the traveler and ring is reduced to a minimum andvery burnishing the bead along this part so that a highly polishedsurface will be produced over which the traveler will slide withsubstantial- 1y no frictional resistance.

There has thus been provided a simple and eflicient device of the ilcinddescribed and for the purpose specified.

It is obvious that minor changes may be made in the form andconstruction of the invention without departing from the material spiritthereof. It is not, therefore, desired to confinethe invention to theexact form herein shown and described,but it is desired to include allsuch as properly come within the scope claimed.

Having thus described the invention, what is claimed as new, is:

1. The combination of a spinning ring having a depending head on itsinner periphery, a traveler havin foot portions adapted to engagebeneath tflebead and contacting tangentially with said bead, said footportions being each curved to a radius greater than the bead with theconcave side adjacent the bead, and a ring holder provided with anupstanding internal flange concentric with and spaced from the ring adistance less than the lateral extension of each foot portion of thetraveler.

2. The combination of a spinning ring a depending leg at each endterminating in a I foot curved downwardly and outwardly from the leg toform an arcuate portion having its concave side uppermost endtangentially engaging the bead and a rin holder provided with anupstanding interna flange concentric with and spaced from the ring adistance less than the lateral extension of each foot por- 5 tion of thetraveler;

3. The combination of a spinning ring having a depending head on itsinner periphcry, with a traveler formed of a single length of wirehaving a body portion provided with a depending leg at each endterminating in a foot curved ownwardly and outwardly from the leg toform an arcuate portion having its concave side uppermost andtangentially engaging the bead, the radius of curvature 0 each footbeing greater than the radius of the bead, and a ring holder providedwith an upstanding internal flange concentric with and spaced from thering a distance less than the lateral extension of each foot portionofthe traveler.

In testimony whereof I afiix 111 Si ature.

WHJLARD T. SON.

